Now Thats What we call a Summation!

Algebra Level 4

\[\large \sum^\infty_{r=1} \frac{r^3+(r^2+1)^2}{(r^4+r^2+1)(r^2+r)} = \frac ab\]

The equation above holds true for coprime positive integers \(a\) and \(b\). Find \(a+b\).

×

Problem Loading...

Note Loading...

Set Loading...